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प्रश्न
The mirror used by the ophthalmologist to examine the eye is _______.
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उत्तर
The mirror used by the ophthalmologist to examine the eye is Concave mirror.
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संबंधित प्रश्न
ill in the following blank with suitable word:
For a convex mirror, parallel rays of light appear to diverge from a point called the ......... .
Explain why, a ray of light passing through the centre of curvature of a concave mirror gets reflected back along the same path.
An object 3 cm high is placed at a distance of 8 cm from a concave mirror which produces a virtual image 4.5 cm high:
(i) What is the focal length of the mirror?
(ii) What is the position of image?
(iii) Draw a ray-diagram to show the formation of image.
An object of 5.0 cm size is placed at a distance of 20.0 cm from a converging mirror of focal length 15.0 cm. At what distance from the mirror should a screen be placed to get the sharp image? Also calculate the size of the image.
What would your image look like if you stood close to a large:
concave mirror?
A student obtained a sharp image of the grills of a window on a screen using a concave mirror. His teacher remarked that for getting better results a well lit distant object (preferably the sun) should be focussed on the screen. What should be done for this purpose?
(A) Move the screen slightly away from the mirror
(B) Move the mirror slightly towards the screen
(C) Move the screen and the mirror away from the object
(D) Move the screen and the mirror towards the object
Why does obtaining the image of the sun on paper with the help of a concave mirror burn the paper?
Explain the images formed by a concave mirror.
The image formed by concave mirror is real, inverted and of the same size as that of the object. The position of object should be ______.
What is a concave and convex mirror?
